tuning a box to 35?

[Doberdad 10+ year member]

i just made a fiberglass box for 2 re se's, i have heard i should tune to 35, and i need to know how to do that...

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[ParkRat 10+ year member]

The way I tuned my box years ago when I had a JL12w5 was the port length and diameter. I contact JL and they gave me the port size depending on what I wanted it tuned to.

 

[ss3079 5,000+ posts]

i just made a fiberglass box for 2 re se's, i have heard i should tune to 35, and i need to know how to do that...

Whats the volume of the box ... what is the width and height of the port ...

- Steve

 

[Doberdad 10+ year member]

the box is around 4 1/2 to 5 cubes. i didnt make any ports yet

 

[mgaidica 10+ year member]

well pick a length and height, or diameter for the port, we'll give ya length..

 

[Doberdad 10+ year member]

they will be 3in ports. how many do i need?

 

[ShaunMac 10+ year member]

For 4.75 cu ft. tuned @35Hz

Use 3 3" diameter ports that are 7.6" long.

or

Use 4 3" diameter ports that are 11" long. (more port area = less noise)

 

[Bavarian3 10+ year member]

it would be hard to get alot of port area with round ports but.....u could do 4 3" ports 10.85 inches long. i duno if thats enough port area tho, according to John (snova) u need 10-15 in.^3 for each cube..

 

[Doberdad 10+ year member]

well, i want it loud, so dont i want less ports then? what if i made one long rectangle port across the bottom?

 

[Doberdad 10+ year member]

would that work, by making a little rectangular box, and leave the 2 sides off and cut and glue that into my box? i will want it 1 1/2 high. it doesnt matter how long, cause it goes across the width of my trunk facing the inside.i just need a width and depth...if that idea will work...?

 

[Doberdad 10+ year member]

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